AFM evidence of surface relief formation and models of fatigue crack nucleation
AFM evidence of surface relief formation and models of fatigue crack nucleation
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DOI：
10.1016/s0142-1123(03)00114-2
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发表时间：
2003-09-01
影响因子：
6
通讯作者：
Obrtlík, K
中科院分区：
文献类型：
--
作者：
Polák, J;Man, J;Obrtlík, K
原子力显微镜和高分辨率扫描电子显微镜被用来找到真正的表面浮雕对应于持久的滑移标记出现持久的滑移带疲劳多晶奥氏体和铁素体不锈钢。持久的滑动痕迹是由挤压和侵入形成的。记录了挤压和侵入的形状，并在两种钢中研究了挤压生长的动力学。实验数据进行了讨论，并与最近的疲劳裂纹形核模型的预测进行了比较。(C)2003爱思唯尔有限公司。保留所有权利。
Atomic force microscopy and high resolution scanning electron microscopy were used to find the true surface relief corresponding to persistent slip markings emerging from persistent slip bands on fatigued polycrystalline austenitic and ferritic stainless steels. The persistent slip markings are formed by extrusions and intrusions. The shape of extrusions and intrusions was documented and the kinetics of the extrusion growth was studied in both steels. The experimental data were discussed and compared with the predictions of the recent models of fatigue crack nucleation. (C) 2003 Elsevier Ltd. All rights reserved.